. >> i'm tori campbell. we begin with sal. >> breaking news, crash, involving a transit bus and several other vehicles. ktvu's claudine wong is on the scene as we look at live pictures from newschopper2. they are working hard to clear the lanes. looks like one of the paramedic vehicle is just leaving -- vehicles is just leaving. let's go to claudine? >> reporter: five cars were involved. you can see multiple tow trucks out here trying to get these cars out of the way. pretty decent damage to the back of at least several cars that we've seen. the vta bus is actually up in front of that tow truck that you are looking at right now. now, i've talked to the chp about what happened and a witness out here who also stopped after this all happened. he says it all started with one car who rear ended another and then fell out of the car for some reason and that car drifted across the lanes and that's when all of these multiple collisions happened. here's the witness who pulled over describing what happened -- >> someon